Re: first oav attempt
when I oav I have 2 buckets of water ready to pull the top and flood the hive if the smoke gets worse. recommend trying the oav with that dose in the open to see how long it takes to burn off. mine is over 3 minutes. then I leave it in for another couple sealed. I just did a treatment during the afternoon and saw a few bees come out that looked albino. the oa should give dose rate. I wouldn't go any lighter or heavier. they don't like it whenever you do it you'll always get some coming to attack and escape.
Terrence - 2 full years....still a newb